Carbureter.



G. J. MAYER.

CARBURETER.

APPLIUATIQN FILED JUNE 1, 19091 1,080,645. Patented Decl9, 1913.

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G. J. MAYER.

CARBURBTBR. APPLICATION FILED JUNE 1, 1909.

1,080,645. vPatented Dec. 9, 1913.

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CARBURETER.

Specification of Letters Patent,

Ratented Dec. Q 191.3.

Application led I une 1, 1909. Serial No. 499,489.

To all whom it may concern.'

Be it known that I, Gourmet) J. Marmi, a citizen of the United States,residing at Buffalo, in the county of Erie and State of New York,`useful Improvements in Carbureters,. which the following is aspecification.

My invention relates to improvements in carbureters, such as are used inconnection with explosive-engines whereby a suitable explosive mixture1s obtained to provide the necessary power for operat ng the engine.

The object of my invention is the production of' a simple and elicientcarbureter of this type, by means of which the suction induced by theengine acts upon a series of valves arranged to unseat by atmospheric,pressure under diii'erent degrees of suction` runs at alow speed,

only a portion of said valves become unseated, while as the engineincreases in speed,

are seated balls or globular members serving the suction action alsoincreases-and acts to `open' some or all of the remaining valves ofA theseries.

It also has for its object the provision of a diaphragm or wall providedwith a number of openings 'of different sizes in which as valves andhaving different areas expose to the atmospheric air so that under thedif! ferent running conditions of the engine, the valves will unseataccordingly and allow the proper quantity of air to enter the1nixing-chamber for the purpose of providing, at all times, an explosivemixture having the nproper proportion of air and gasolene.

Other objects are to provide a removable sleeve in which is located theexit-.end of the aspirating-nozzle and surrounding which is a series ofvalves arran ed to open underl d iierent speeds of the engine so Aisadmitted to the mixing-chamber of the carbureter in increased quantitiesas the engine increases and so that the drawn from the aspirating-nozzlein correspondingjquantities; said s eeve being adapt. ed to, bereplaced. by `another having zr diif-4 ferent size bore, the size ofwhich dpends to a certain extent on the engine and the amount of air tobe drawn over the aspiratingmozzle forbest results.'

A; still further object of my invention is to ,improve on carburetersnow `in to these ends it consists in the constiuction,

arrangement, and combination of parts to be have invente'd certain newand.

that the airA gasolene is operating-flanges c,

the end of 'Y use; and

hereinafter described and particularly pointn ed out in the subjoinedclaims. In the drawings,-Figure 1 is a side elevation of a carburete'rconstructed according to my invention.A Fig. 2 is a central vertical-section through the. carbureter proper and a portion of-'the gasolenefeedchamber connected thereto. Fig. 3 is a horizontal section taken online 0f-3, Fig.V 2. Fig. 4 is a vertical section taken on line L -4,Fig. 2. Fig, 5 is a horizontal section looking up, taken on line 5-5,Fig. 2, the aspirating-nozzle being omitted. Fig. 6 is a plan view ofthe diaphragm or disk in which are formed the valve-seats for theglobular valves. Fig. 7 isy a detached perspective 'view of the reducingsleeve into which the delivery or exit-end of the aspirating-nozzleprojects.

s Referring now to the drawings in detail, like `letters of referencerefer tto like. parts in the several gures.

The reference letter A designates a gaso 'lene feed-chamber of anycommon construction, so arranged that it will feed gasolene' into thecarbureter-proper B and maintain the same at a constant level; saidgasolene feed-chamber having a threaded extension a adapted forconnection with said carburet-er. As is common in gasolene feeddevicesof this character, a suitable control ling-valve is employed to governthe flow of gasolene to the carbureter 4 In the preferred form, thecarbureter comprises two sections C and D; the section @l being at thelower end thereof and preferably of tubular tially U-ormation. however,be of any otherjormation so long as it provides for the introduction ofair intothe carbureting-chamber- The section D is mounted on the sectionC 4and for the purpose of connecting the same'to section C in a rigidmanner, said sections have cod, through which screws (Z1 .are passed.Held between the'two secfions of the carbureter is a disk E serving as adiaphragm or wall and having centrally therein a threaded opening e intowhich fits an externally threaded strangling or reduc-V to enter theair-chamber G formed bythe,

construction and of substan- 'The section C may,

lower sect-ion Clot the carbureter,and itself serving as thecarbureting-chamber. tending upward from said stop-flange areretainer-lugs f1, for a purpose to appear hereinafter.

- An aspirating-nozzle H is provided which preferably has connectionwith the extension a of the gasolene feed-chamber andffrom its point 'ofconnection thereto is directed inward and upward so that its exit-endterminates'centrally within said reducing-sleeve.

` The disk or wall E is provided with a circular series of openings `Iof different diameters which are beveled to serve as valveseats for aseriesl of globular valves J; of equal size and Weight normally held intheir seats and adapted to be lifted by the atmospheric air for' theurpose of uncovering said openings to al ow air to pass therethrough. v

The upper section -D of the carbureter serves as the mixing-chamber andis en-- 'larged at its lower end to provide an annular shoulder K whichserves as a stop to limit the upward or opening movement ot' saidglobular' valves. The upper end of said section-'is threaded forconnection thereto of a pipe leading lo the ignition-chamber of theengine and for the purpose of heating the interior of themixing-chamber, a removable jacket L is threaded onto said section.Threaded bosses Z, Z1, extend from said jacket, to which pipes may beconnected for providing a circulation therethrough of a suitable heatingagent. rehrottle-i'falve M in the form of a disk, is pivotally heldwithin the upper section of the carburetena short distance above thediskor wall E and itsl stem m which passes through the wall of saidsection, as at mf, has a manipulatinglever N secured thereto to whichmay be attached a rod or other suitable means for actuating it vfrom adistant point. Said lc'verhas a toe n which is adapted to stri-ke ascrew O adjustable in a stop O1 extending outward from the section D soas to limit the movement of the valve in one direction; said stop beingso positioned with relation to .the axis ot' said lever that the latterstrikes the same-adjacent its axis tolimit theI lows :*-llVhen theengine is to be run at low speed, the manipulating-lever N is in theposition shown in Fig. 1, with the too thereof against the stop O andthe throttle-valve assuming the position shown in Fig. 2, leavingjust-suificient space between its edge and the wall of themixing-chamber, as at P, to

I.permit the engine, when turned over by hand, to create a. vacuum or atleast a partial vacuum in the space between said throt- ,las

" tls-valve. andthe exit-end of the aspirating- 1 nozzle, thuspermitting .the air to rush into Ex-A Afrom the aspirating-nozzle. Theair inthe lower section of the carbureteracts at the same time upon theexposed portions of the globular valves seated in the largest openingorlopeuings I and slightly lifts the same to permit .the air to passv upthrough said openings and lcommingle with the air passing thro-ugh thereducing-sleeve and the vaporized gasolene drawn from theaspiratingnozzle, the air and gasolene becoming thoroughly mixed andpassing up between the throttle-valve 'and the wall of the mixingchamberand passing out lthrough the top ot the carbureter to -be drawn into theengine where the charge is ignited to propel the engine. A slightopening movement of the throttle-valve will create increased suctionupon the aspirating-nozzle and cause an increased volume of air .to bedrawn through `the reducing-sleeve, which air and the supcause areduction in the supply of air and gasolene in proportion to the extentto which said valve is closed, so that the mere manipulation of thethrottle-valve will'govern Vthe speed of the engine after the same isset into motion. J risc from their seats, theyare guided and retained inaliuement with their seats by the retainer-lugs f1.

By reason lof the openings in the disk or wall. E being of differentsizes, different areas of theyyalves are exposed through the lbottom ofthe same so. that the air-pressure in the lower section acts first toelevate the valve or val-.ves having the greatest area ex- Ag osed andasthe air-pressure increases, owing to the suction action in thecarburetingchamber'increasing, the globular valves hav- VVhen theglobular valves ing the next greater area exposed are caused to rise.This being continued with the increased pressure of the air until all ofthe globular valves are unseated, or until the engine runs at l'iighestspeed. The number of,

valves unseated are therefore always in proportion to the speed of theengine, thus assuring at all times a proper mixture vof air andgasolene.

For some types of engines, the area of the reducing sleeve F shown inthe accompanying drawings` may be too large forbest results, in whichcase it is simply necessary to separate the two sections of theearbureter, remove the disk with the globular valves thereon and replacethe reducing-sleeve by a sleeve having a smaller bore, after which thedisk may be properly seated and the two sections connected.

The construction herein shown provides for the use of a disk havingopenings therein and valves closing said openings; said disk being fullyroutined within the casing of the carburetor and serving as a diaphragmor Yall through which the gasolene and the entire supply ot' air mustpass in order to reach the ignition-chamber of the engine.

Having thus describedmyinvention,what I claim is.

l. In a carbureter, the combination with a casing having an air-'inletand a mixtureoutlet, a horizontal Wall 'located between said inlet andsaid outlet and provided with a central opening and a circular series ofopenings o'l" different diameters surrounding said central opening,globular valves of equal diameter held by gravity in saidcirculai-'series of openings, a reducing-Sleeve removable in saidcentral opening, an aspirating-nozzle extending into and terlninatingwithinsaid reducing-sleeve, and a throttlevalve between saidaspirating-nozzle and said mixture-outlet.

Q. In a carbureter, the combination with a casing having an air-inletand a mixtureoutlet and divided transversely between said inlet andoutlet to provide two connected sections, one of which is enlarged atits oonnected end to provide an internal Shoulder, of-a disk. heldbetween said sections and having a central threaded opening and a eirrular series ot' valve openings of different diameters surrounding saidcentral opening, globular valves of equal diameter seated in l l l saidvalve-openings and limited in their opening movement by said internalshoulder, a reducing sleeve in saidcentral opening, an aspirating-nozzleterminating within Vsai'd reducing-sleeve, and a throttle-valve betweensaid aspirating-nozzle and said mixture-outlet.

3. In a earlier-eter, the combination with a casing having an air-inletand a mixtureoutlet and divided transversely between said inlet andoutlet by a horizontal wall provided with a central opening and acircular series ot' valve-openings surrounding said central opening,globular valves seated in said valve-openings, a reducing-Sleeveremovable in said central opening and havin upstanding retainer elementsHiding Sai globular valves and retaining tiem in alinement with saidopenings, an aspiratingnozzle terminating within said reducingsleeve anda throttle-valve between said uspirating-nozxle and said mixture-outlet.

4. ln a earbureter, the combination with a easing having an air-inletand a mixtureoutlet, of anvall dividing said casing into two chambersand having a central threaded opening and a series of valve-openings,gravity valves of equal size closing said valveopenings, a sleevethreaded into said central opening, an aspirating-nozzle terminatingwithin said sleeve, and a throttle-v valve between saidaspirating-nozzle and said mixture-outlet.

.In testimony whereof, I have affixed my signature in the presence oftwo subscribing witnesses.

GODFRIED J. MAYER.

Witnesses 2 ELLA C. PL'UEoKi-IAHN, EMIL Nnnrmn'r.

